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Variable Star Astronomy

You are invited on a journey into the hearts of the stars—to see the rhythms of their pulsations, and to gain an understanding of how they evolve.

Variable Star Astronomy, formerly published as Hands-On Astrophysics, was developed for anyone who is interested in astronomy and in learning more about the behaviors and properties of stars. The conversion of the curriculum to electronic format has been completed for the Student Manual and the Teacher Pages. Conversion of the supporting VSTAR software is in progress. The AAVSO, with support from the Chandra X-Ray Center, is delighted to make this rich educational content available to you, free-of-charge, below. If you have any questions or comments please contact us. Enjoy!